awei GM-2 USB + 3.5mm Ambient Light Gaming Wired Headset with Microphone

1. Microphone: -42+/-3dB /2.2K/20Hz-16KHz (omnidirectional)
2. Speaker: 50mm 20 ohm /20Hz-20KHz (moving coil type)
3. Output power: 20mW (1KHz 0dB)
4. Signal-to-noise ratio: greater than 110dB
5. Distortion: less than 1 percent
6. Scope of use: desktop computer/laptop, etc.
7. Working current: about 90mA
8. Input voltage: USB 5V
9. Ergonomic design, comfortable to wear